×

### Let's log you in.

or

Don't have a StudySoup account? Create one here!

×

or

by: Taryn manciu

13

1

3

# Week 3 Lectures 5 & 6 Econ 101

Marketplace > University of Oregon > Econ 101 > Week 3 Lectures 5 6
Taryn manciu
UO
GPA 3.46

Get a free preview of these Notes, just enter your email below.

×
Unlock Preview

Weekly lecture notes covering materials talked about followed with some examples and extra side notes.
COURSE
Contemp Econ Issues >2
PROF.
Urbancic M
TYPE
Class Notes
PAGES
3
WORDS
KARMA
25 ?

## Popular in Department

This 3 page Class Notes was uploaded by Taryn manciu on Tuesday October 18, 2016. The Class Notes belongs to Econ 101 at University of Oregon taught by Urbancic M in Fall 2016. Since its upload, it has received 13 views.

×

## Reviews for Week 3 Lectures 5 & 6

×

×

### What is Karma?

#### You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 10/18/16
EC101 Week 3 Lecture 1 Samples with built in bias - Asked Oregon students which school is the best - HTLWS example: polls said Alf would win, but the problem with that was the survey was taken by phone and not everyone had a telephone Online Polls - Specific audience - Externalities - People sending people to polls makes them meaningless - Margin of error is present in online voting The Sample Matter - People self-selecting into online polls is exactly why they’re meaningless - The sample is not going to be representative - Its like the Oregon duck asking who has the best mascot and voting as many times as you want… Different Perspectives - Old vs. young: wage increases, college tuition, women’s rights, and social security (these are all issues that older and younger generations would have differing opinions about) Data: Plural Datum: Singular Data can be messy… - Guessing how many pennies are in a jar - Answers given: 246.1 does this mean \$24.61, \$246.10 was the decimal in the wrong place so its actually \$2461? Or is it the amount of pennies in the jar 2,461? o The fact of the matter is, is that someone has to make these kind od decisions when going through all the data being collected o Someone has to accept or deny these figures o Things that also need to be taken into account § What was the response rate? § Are values missing? § Are some data being dropped? § Does this person dropping data have a specific agenda? Distributions - Normal Distributions o Bell shaped o Mean median and mode are quite close OR exactly the same o Normal Dist. Ex: height of males - Negatively Skewed o Long tail towards left o Ex; grades, age of death - Positively Skewed o Long tail skewed towards the right o Ex: income, wealth, house price Week 3 Lecture 2 Little Figures That Are Not There - FIRST problem with studies with small sample sized the results may vary quite a bit between them (or between each small study and one with a larger sample) - This is why small studies aren’t reputable - SECOND problem with studies with small sample sized is that many of these studies might be done, and it may be the case that only the one with the most favorable results is being reported (while the rest are sent to the trash) o This makes things very deceptive Much Ado About Nothing - The absolute number look big but the context they are in make them tiny o \$562,000 is 0.0000014% of the budget of the department of veterans affairs… TINY - Be wary whenever an absolute number is given without the larger context o Is this number big for its context? o Is it small for its context? o Does it matter? - Ponder weather a percentage is meaningful o Is the % change significant? o Does it fall with a normal range or variation? o Does the absolute number matter? LISTEN UP: MEASUREMENTS DO NOT MEAN TRUTH - When data are collected to measure something in the real world there is always some measurement error. ALWAYS for any discipline - ESSPECIALLY true in social sciences o Political campaigns - If the gap between two measured values is less than the margin of error we cannot really sat t that they are different or that one is larger than the other. The Gee-Whiz Graph - Beware of graphs that exaggerate effects by manipulating the scale - Having inconsistent scale - Omitting the scale altogether

×

×

### BOOM! Enjoy Your Free Notes!

×

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

## Why people love StudySoup

Steve Martinelli UC Los Angeles

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Janice Dongeun University of Washington

#### "I used the money I made selling my notes & study guides to pay for spring break in Olympia, Washington...which was Sweet!"

Steve Martinelli UC Los Angeles

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

#### "It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!
×

### Refund Policy

#### STUDYSOUP CANCELLATION POLICY

All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email support@studysoup.com

#### STUDYSOUP REFUND POLICY

StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here: support@studysoup.com

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to support@studysoup.com